function GetPollutionStats()
  if not (settings.global["factorio-prometheus-exporter-export_pollution_stats"].value) then
    return
  end
  local pollutionParts = {}
  pollutionParts[#pollutionParts+1] = "---pollution-stats---\n"
  for _,surface in pairs(game.surfaces) do
    local surface_name = surface.name

    local pollution_input = game.surfaces[surface_name].pollution_statistics.input_counts
    local pollution_output = game.surfaces[surface_name].pollution_statistics.output_counts
    
    if surface.platform ~= nil then
      surface_name = surface.platform.name
    end
      
    for name, stat in pairs(pollution_input) do
      pollutionParts[#pollutionParts+1] = ("%s:in:%s:%d"):format(name,surface_name, stat)
    end

    for name, stat in pairs(pollution_output) do
      pollutionParts[#pollutionParts+1] = ("%s:out:%s:%d"):format(name,surface_name, stat)
    end
    helpers.send_udp(udpAddress, table.concat(pollutionParts,"\n"),serverIndex)
  end
end